linux-kernel - Re: [patch 00/60] x86/kpti: Kernel Page Table Isolation (was KAISER)

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Message-ID: <alpine.DEB.2.20.1801202054210.1998@nanos>
Date:   Sat, 20 Jan 2018 20:59:50 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Andrew Morton <akpm@...ux-foundation.org>
cc:     LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andy Lutomirsky <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Dave Hansen <dave.hansen@...el.com>,
        Borislav Petkov <bpetkov@...e.de>,
        Greg KH <gregkh@...uxfoundation.org>, keescook@...gle.com,
        hughd@...gle.com, Brian Gerst <brgerst@...il.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Denys Vlasenko <dvlasenk@...hat.com>,
        Rik van Riel <riel@...hat.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        David Laight <David.Laight@...lab.com>,
        Eduardo Valentin <eduval@...zon.com>, aliguori@...zon.com,
        Will Deacon <will.deacon@....com>, daniel.gruss@...k.tugraz.at,
        neil.berrington@...acore.com
Subject: Re: [patch 00/60] x86/kpti: Kernel Page Table Isolation (was
 KAISER)

On Fri, 19 Jan 2018, Andrew Morton wrote:

> Should KPTI have a MAINTAINERS entry?

I don't think so. It's all x86 core code which has a maintainer entry.

> Neil Berrington (cc'ed) is reporting "Double fault in load_new_mm_cr3 with KPTI
> enabled" at https://bugzilla.kernel.org/show_bug.cgi?id=198517

Neil, the screenshot shows that this is on a ubuntu 4.13 something
kernel. Can you reproduce on 4.14.14 or on Linus latest ?

Thanks,

	tglx